Oil burner



Nov. 6, 1928.

E. L. REYNOLDS OIL BURNER Filed Oct- 2 1927 2 Sheets-Sheet 1 17 gwwmtom .18

EL. FZ-Y/VOLDs,

man may.

Nov. 6, 1928. 1,690,249

E. L. REYNOLDS OIL BURNER Filed Oct. 24, 1927 2 Sheets-Sheet 2 IL. 772 YIYOLD'S;

drum,

Patented Nov. 6, 1928.

1,690,249 PATENT. OFFICE.

ERNEST L. REYNoLns, F TULSA, OKLAHOMA;

OIL BURNER.

Application filed October 24, 1927. Serial No. 228,392.

My invention relates to improvements in oil burners. A p p In accordance with my invention, I provide a burner wherein the oil is preheated prior to its entrance into the combustion chamber. To.

accomplish this, an oil heating chamber surrounds the combustion chamber and is heated from the products of combustion therein. The oil supply pipe preferably extends over the burner. and the oil is heatedbetore it enters the heating chamber. I also provide means to properly mix the lIlOOlTllIlg vapor- 1zed oil and air, within the combustion chamher. for effecting a complete combustion of the fuel and the elimnation of carbon deposits. I also provide a bathe element, preferably in. the form of a spider, which covers the top of the burner, and retains the gases within the combustionchamber, a sufiicient length of time, to eifecttheir complete combustion. i

p In the accompanying drawings, forming a part of this specification, and in which like numerals are employed to de'signatelike parts throughout the same,

Figure 1 is a perspective viewof a burner embodying my invention,

Figure 2 is a horizontal transverse section taken on line 22 of Figure 3',

Figure 3 is a transverse vertical section taken on line 3 3 of Figure 2,

Figure lis a horizontal section taken on line 44 of Figure 3, and,

Figure 5 is a perspective view of the various elements constituting the burner.

' In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 desig nates a preferably cylindrical casing, constituting the body portion of the burner. Nithcircular in horizontal cross section, and forming with the casing 10 an annular oil heating chamber 12. Upon the inner side of the wall 11 is a combustion chamber 13. An annular pocket 13 is formed in the wall 11 and serves to catch oil, to be used in starting the burner.

The top portion of the wall 11 preferably flares upwardly, as shown. The wall 11 is provided with any suitable number of inlet openings 14, spaced from thebottom of the combustion chamber 13, as shown, and through which the vaporized oil passes into the combustion chamber 13 from the heating chamber 12. The numeral 15 designates an oil supply pipe, leading into the oil heating chamber 12, as shown, and this supply pipe in this casing is aninner wall 11, preferably has a horizontal portionlG, preferably passing diametrically over the burner; A drain plug 17 is preferably provided, and may be arranged opposite the outlet of the pipe 15. The bottom of thecombustion chamber 13 1s open and is equipped with a horizontal flange 18, which supports a mixing device, including generally radialblades or wings 19, attached at their inner ends to acentral tube 20, open at its top and bottom. The blades 19 are spirally twisted upon their longitudinal axes, and the upper edges of these blades are at about the same elevation as the inlet open ings 14. The tube 20 extends above the blades 19 and the openings 14, for a substantial distance, as shown.

Arranged beneath the casing or body portion 10 is a preferably cylindrical air admitting casing or shell 21, receiving in its upper open end a,depending annular flange 22, formed upon the shell 21. Theshell 21 is provided in its periphery with air inlet open'i 23, partly covered by the flange Theshell' 21 is provided centrally thereof with an up standing cylindrical flange 24, providing a central air inlet opening. The opening of the flange 24 may be adjusted to any size by means of a pivoted plate or valve 25, but the openings 23 have their uncovered portions of a fixed area. Any suitable means may be employed to hold the shell 21 to the flange 22, and the body portion of the burner 10 may be supf ported by any suitable means.

I also provide retarding or difi'using spider element, mounted' ;upon the top of the combustion chan'iber. This spider element comprises' a central preferably eirculafplate 26,- having a redljiced' central opening 27, in alinemen-t with: the center of the tube 20. Badiating from the central plate 26 are the a rms 28 ot the spider, which are relatively wide, with openings 29bctween them;- rest upon the casing or body portion 10 and are heldfin place by an upstanding annular flange 30.

During the operation of the burner, a jet of the 'flame which is hot, passes upwardly through the opening 2]and heats the pipe 16, whereby the oil is somewhatheated before entering the annular heating chamber 12. When the oil enters the heating chamber 12 it is further heatedby the intense heat from the combustion chamber 13. Some of the oil is vaporized and is sprayed through the inlet openings l t, and is there met by the air passing through the openings 23 and 24, and ris- These arms ing into the combustion chamber 13. This air engages withthe spirally twisted blades 19, and while traveling generally upwardly is also deflected radially horizontally and outwardly, and a thorough mixture is eli'ected with the gases passing through the openings H, which gases are ignited as they enter the combustion chamber. The flame produced by the gases escaping from the openings Ll, impinge upon the upper end of the air tube 20 and rebound therefrom and become more or less dilt'used- The air escaping from the top of the tube 20 is heated to a high temperature, and secondary combustion occurs in the combustion chamber near and above the tube 20 and twisted blades 19. The spider retards the escape of the flame and products of combustion, sufl'iciently, so that the secondary combustion may be complete. The flame escaping through the openings of the spider is intensely hot and is of a generally white color, resembling the filament in an electric lamp.

It is to be understood that the form of my invention, herewith shown and described, is to be taken as a preferred example of the same, and that various changes in the shape. size and arrangement of parts may be resorted to without departing from the spirit of my invention, or the scope of the sub joined claims.

Having thus described my invention, I claim:

1. In an oil burner of the character described, a closed oil heating chamber having an inner passage to produce a combustion chamber which is surrounded by the closed oil heating chamber, said heating chamber having apertures in its inner wall, leading into the combustion chamber, means to sup ply oil to the oil heating chamber, means whereby air is supplied to the bottom of the combustion chamber, and a. mixing device, arranged within the combustion chamber.

2. In an oil burner of the char cter de scribed, a. closed oil heating chamber having an inner passage to produce a combustion chamber which is surrounded by the closed oil heating chamber, said heating chamber having apertures in its inner wall, leading into the combustion chamber, means to supply oil to the oil heating chamber, means whereby air is supplied to the bottom of the combustion chamber, and a mixing device arranged within the combustion chamber and embodying generally radial blades.

3. In an oil burner of the character described, an oil heating chamber constructed to produce a combustion chamber surroumlcd by the same, and having apertures leading into the combustion chamber, means to supply oil to the oil heating chamber, means whereby air may pass into the lower portion of the combustion chamber, and a mixin device arranged within the rombustion chamher and including a tubular hub and blades radiating therefrom, the apertures being arranged in substantially the elevation of the upper edges of the blades and the tubular hub extending upwardly beyond such upper edges.

4. In an oil burner of the character described, an oil heating chamber constructed to produce a combustion chamber surrounded by the same and having apertures upon its inner side leading into the combustion chamber and also having means whereby air may pass into the lower portion of the combustion chamber, means to supply oil to the oil heating chamber, a mixing device arranged within the combustion chamber and including an upstanding tubular hub and blades radiating therefrom, said apertures being positioned in substantially the elevation of the upper edges of said blades and the tubular hub extending above said upper edges, and a covering spider arranged over the top oi the combustion chamber and embodying a hub portion and spaced radiating arms.

5. In an oil burner of the character de scribed, a hollow annular oil heating chamber surrounding a combustion chamber and provided upon its inner side with apertures which lead into the combustion chamber, means to supply oil to the oil heating chamber, an air supply chamber in communication with the bottom of the combustion chamber and having air inlet openings in its side wall and a central air inlet opening in its bottom, a mixing device within the combustion cham- 301' including a centrally arranged vertical tubular hub and spirally twisted blades radiating therefrom, said apertures being ar ranged in substantially the elevation of the upper edges of the blades and the tubular hub projecting above such upper edges whereby the flames passing from said apertures may impinge upon the upper end of the tulmlar hub, and a covering spider arranged over the combustion chamber and embodying a central hub portion having an aperture formed therein and spaced relatively wide adiating arms.

In testimony whereof I aliix my signature.

ERNEST L. REYNOLDS- Ill 

